Big Problem, help

I tried meditating for the first time last night just before I went to bed. I sat there in perfect comfort and thought I found a reached a good state to be in.
For no reason at all, I start crying unbearably for a few minutes. I tried to make myself stop but could not come to! I then could not fall asleep whatsoever and ended up laying in bed, restless the entire night.

So uh, I guess this isn't the soothing meditation everyone talks of. What did I do?